A133

Dual Voltage Controlled Polarizer

A-133 is a special dual voltage controlled amplifier that enables both positive and negative amplifications

Here could be a link to a Muffs 'Harmony-Central-like' review thread for the module...

Reviews

Threads

Doepfer Polarizer A-133 VC (What does it do, exactly?)

Doepfer A-133 VC Polarizer